A WORKSHY son hacked his parents to death then cooked up a “diabolical stew” to dissolve their corpses in acid, a court heard.
Joel Guy Jr, 32, allegedly butchered his mom Lisa, 55, and dad Joel Snr, 61, to get his hands on $500,000 life insurance after they threatened to cut off his allowance.
The layabout student is accused of murdering his parents when he returned home to Knoxville, Tennessee, for the Thanksgiving holiday in 2016.
Prosecutors say he knifed his dad 40 times while his mom was out grocery shopping, and when she returned he stabbed her 30 times.
He then set about the grisly task of dismembering their corpses, it is alleged.
Prosecutor Leslie Nassos described in horrifying detail how he separated their limbs from their torsos, and snapped Lisa’s skull from the topmost vertebra in her spine.
He then boiled her head in a pot on the stove while other parts were soaked in acid in blue plastic containers, the court heard.
Ms Nassios said: “The killer put Lisa’s body parts in one, and Joel Sr’s in another, and then he covered them with a corrosive substance, and left them there to liquefy into some sort of diabolical stew of human remains.
“Then, the killer took Lisa’s head and carried it downstairs, and took it into the kitchen.
“He got out a stockpot, placed her head in the pot, filled it with liquid, carried it over to the stove, covered it, turned on the stove, and left it there to cook.
“This was a monstrous crime.”
She claimed Guy planned to use his father’s severed hands to cover-up his own fingerprints at the family’s gore-soaked home.
Knox County Sheriff’s Office detective Jeremy McCord described the carnage he found inside the Guys’ home as “the most horrific thing I’ve ever encountered in police work – in my life.”
He said he could feel heat emanating from the home and chemicals permeating the air as he walked into the garage.
Inside, there was blood all down the hallway on the walls and floor, with scissors and clothing that appeared to have been cut from a body, and a large knife.
He saw bottles of peroxide, bleach, acid and rubbing alcohol, and could smell the stench of death mixed with the chemicals.
The bloodbath came after the couple had confronted their son over his never-ending studies, the court heard.
Emails showed Joel Snr had threatened to stop his son’s allowance as far back as 2013, and he was again growing tired of funding his deadbeat lifestyle, jurors heard.
Joel Jr’s three sisters said the Thanksgiving celebration was uneventful and there was no hint of the horror to come when they went home.
However sickening diary entries reveal how he wanted both parents dead to he could cash in a life insurance policy, it is claimed.
One entry says: “Get killing knives – quiet, multiple…get sledgehammer – crush bones…bring blender and food grinder – grind meat.”
Another is said to reveal the motive. It reads: “He’s not alive to claim her half of the insurance money – all mine $500,000.”
The diary is also claimed to reveal that Guy thought dissolving the bodies in acid would provide him with an alibi as it disguised the time of death.
Lisa’s colleagues raised the alarm when she failed to show up for work the following Monday.
By then Joel Jr had gone back to his apartment in Baton Rouge, Louisiana.
He is said to have initially confessed to the killings, but now denies murder.
Yesterday he appeared in court wearing a face visor as the trial got under way.
But prosecutors said they are not seeking the death penalty in his case.
The trial continues.